Wildlife conservation groups say the world's count of wild tigers roaming forests from Russia to India has gone up for the first time in 100 years.

WWF said in an April 10 statement that about 3,890 tigers have been counted by conservation groups and national governments in the latest global census based on data from 2014 -- including 433 in Siberia.

In the last worldwide estimate in 2010, the number of tigers in the wild hit an all-time low of about 3,200.

The census was released a day before ministers from 13 countries meet in New Delhi as they work toward doubling the world's tiger population from the 2010 low by 2022.

The endangered species remains under threat from habitat loss and poachers seeking their body parts for sale on the black market.